Answer utilizing one or a combination of following Nonparametric Tests of Significance: one-way chi square test, two way chi square test, median test, Mann-Whitney U Test, Kruskal-Wallis One-Way Analysis of Variance by Ranks.
Cases of retinitis pigmentosa have been studied in 2 distinct populations: Swiss (110 individuals) and English (125) individuals. The genetic disease might be inherited in one of 3 ways: sex linked, recessive, and dominant. The survey found:
|Sex linked cases
Do these data show the significant association between ethnic origin and genetic type? Employ alpha of 1% and specify null and alternate hypotheses.